Li-ion Battery for IBM/Lenovo 40y6789 40y6797 42t4621 43r9250 92p1142 40y7710 Battery Type : Lithium-Ion - Capacity : 47520 mW-h - Voltage: 10.8V This Product has 12 Months Replacement Warranty 100% OEM compatible Package Includes : 1 pcs laptop battery THIS BATTERY DOES NOT SUPPORT 14.4" WIDE MODELS.